The reason for the high factor of safety is the cylinders will be used to lift a heavy machine, and there will be people around, and sometimes under the load.
Thank you for the responses so far.
We are building four 18" ID x 22" OD cylinders that require 5:1 safety factor at 2500 psi. The material sourced is a 4140 annealed tube with a mill cert yield strength of 62ksi. We have excess material on the ID to bore and hone the cylinder straight, but on the OD the mill specs say it could...
I'm not sure if there is a better grease for this or not. I put a question in the "Tribology" forum also. Maybe they have a suggestion.
The bushing lasts approximately 3 months before failure.
Heating up has not been an issue.
We are trying to come up with a solution to a bushing problem. We have a bushing in an reversing application where a sleeve rotates +/- 15° within a bushing continuously. The sleeve has a 2-3/4" OD for reference.
I need something that will withstand a Velocity of V=210 fpm, P= 2000 psi (force...
We are trying to come up with a solution to a bushing problem. We have a bushing in an reversing application where a sleeve rotates +/- 15° within a bushing continuously. The sleeve has a 2-3/4" OD for reference.
I need something that will withstand a Velocity of V=210 fpm, P= 2000 psi (force...
We are trying to come up with a solution to a bushing problem. While reviewing a bushing catalog I found that they rate there materials based on the PV values. In the book they state that PV values can be increased by addition of the correct lubricants. I'm also interested in possibly using...
